Choose the given statement as true/false:

Minerals occur in veins and lodes of igneous rocks and layers in sedimentary rocks.

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Detailed Solution

The above statement is true.
Minerals occur in veins and lodes of igneous rocks and layers in sedimentary rocks. Minerals can be extracted from different natural sources. There are some minerals such as tin, zinc, copper, and lead which are formed in the small and large cracks of igneous and metamorphic rocks. Veins are small cracks while lodes are larger cracks. Coal and some forms of iron are formed in beds or layers of sedimentary rocks. The bed is the bottom portion of the rock while layers are the different levels above the bed in a rock. Thus, coal is formed in these beds and layers. There are other types of formations also. The formation of bauxite is on decomposed surface rocks. And the salt, being a non-metallic mineral, is formed in the oceanic water.

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